gistfile1.txt

$ PATH_INFO="/altre.us.git/HEAD" GIT_PROJECT_ROOT=/opt/git REQUEST_METHOD=GET /usr/lib/git-core/git-http-backend 
Expires: Fri, 01 Jan 1980 00:00:00 GMT
Pragma: no-cache
Cache-Control: no-cache, max-age=0, must-revalidate
Content-Length: 23
Content-Type: text/plain
Last-Modified: Thu, 22 May 2014 12:23:33 +0000

ref: refs/heads/master


$ PATH_INFO="/altre.us.git" GIT_PROJECT_ROOT=/opt/git REQUEST_METHOD=GET /usr/lib/git-core/git-http-backend 
Status: 404 Not Found
Expires: Fri, 01 Jan 1980 00:00:00 GMT
Pragma: no-cache
Cache-Control: no-cache, max-age=0, must-revalidate

Request not supported: '/opt/git/altre.us.git'

git.conf

server  {

    listen          80;
    server_name     git.altre.us;
    root            /opt/git;

    access_log /var/log/nginx/git.altre.us/access.log;
    error_log /var/log/nginx/git.altre.us/error.log;

    location / {

        include /etc/nginx/fastcgi_params;

        fastcgi_param   SCRIPT_FILENAME /usr/lib/git-core/git-http-backend;
        fastcgi_param   GIT_HTTP_EXPORT_ALL     true;
        fastcgi_param   GIT_PROJECT_ROOT        /opt/git;
        fastcgi_param   PATH_INFO               $uri;
        fastcgi_param   REMOTE_USER             $remote_user;

        fastcgi_pass unix:/var/run/fcgiwrap.socket;
    }
}